Can I apply this to a painted smooth masonary wall?

I wouldn't think its an issue. I used it over a textured/painted wall and it worked great.

Works for non-woven wallpaper ??

This wallpaper adhesive did not work as heavy duty to me. It should work on any wallpaper. It goes on pretty wet. The old thing is you can move the paper and realign, if needed probably for a good 30 mins after you place it.

do I have to prime my wall first?

Just a thought, if it is new wallboard and if you think you might ever want to paint that wall it would be better to prime it so that the glue doesn't soak into the wallboard. Then when you take the wallpaper down you won't pull hunks of wallboard out.

Is this a vinyl adhesive

Not sure, I use this for heavier wallpaper and will never use anything but this ever. Its amazing!!!

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ROMAN Heavy Duty Clear Wallpaper Adhesive, Non-staining, Clear, PRO-838, (1 Gallon - 280 sq. ft.)

ROMAN Heavy Duty Clear Wallpaper Adhesive, Non-staining, Clear, PRO-838, (1 Gallon - 280 sq. ft.)

Product ID: 14470648

Details

Brand
Roman
Color
Clear
Item Form
Liquid
Material
Modified
Specific Uses For Product
Wallpaper

📏Covers up to 280 sq. ft. per gallon

🛠️Heavy-duty tack for heavyweight wallpaper

🇺🇸Proudly made in the USA

25.51 OMR

Duties & taxes included

In stock

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Description

🖼️ Stick with the best—where durability meets clarity!

CRYSTAL CLEAR FINISH - Non-staining, clear-drying formula ensures a flawless, professional look with no visible residue.
EFFORTLESS APPLICATION - Smooth spread with roller, brush, or pasting machine for precise alignment and easy repositioning.
UNMATCHED HEAVYWEIGHT GRIP - Extra tack power to securely hang commercial vinyl and wall carpet without slipping.
GENEROUS COVERAGE EFFICIENCY - One gallon covers up to 280 sq. ft.—enough for 5 double rolls, maximizing your project budget.
TRUSTED AMERICAN CRAFTSMANSHIP - Manufactured in Illinois by ROMAN, a leader with 75+ years of adhesive expertise.

ROMAN PRO-838 Heavy Duty Clear Wallpaper Adhesive is a professional-grade, clear-drying paste designed for medium to heavyweight wallcoverings like commercial vinyl and wall carpet. Offering excellent tack, up to 280 sq. ft. coverage per gallon, and easy application with multiple tools, it ensures precise alignment and a clean finish. Proudly made in the USA, it’s trusted by contractors and DIY pros alike for reliable, long-lasting wallpaper installation.

Specifications

ASIN	B000I1VDPW
Best Sellers Rank	#6,751 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #3 in Wallpaper Adhesives
Brand	Roman
Brand Name	Roman
Color	Clear
Compatible Material	Wallpaper
Container Type	Pail
Customer Reviews	4.6 out of 5 stars 2,119 Reviews
Global Trade Identification Number	00017104113017
Included Components	Roman 011301 PRO-838 1 gal Heavy Duty Wallpaper Adhesive, Clear
Item Form	Liquid
Item Package Quantity	1
Item Type Name	Roman 011301 PRO-838 1 gal Heavy Duty Wallpaper Adhesive, Clear
Item Weight	1 Pounds
Manufacturer	Roman Decorating Products
Material	Modified Starches
Material Type	Modified Starches
Model	011301
Number of Pieces	1
Part Number	11301
Specific Uses For Product	Wallpaper Installation
UPC	017104113017
Unit Count	128.0 Fluid Ounces
Viscosity Level	Medium
Volume	1 Gallons
Water Resistance Level	Not Water Resistant

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